package com.woniuxy03;

import javax.xml.crypto.dsig.spec.C14NMethodParameterSpec;

/**
 * @author 作者
 * @create 2025-05-27 15:11
 */
public class Test01 {
    public static void main(String[] args) {
//        int[][] a={{1,2,3},{4,5,6},{7,8,9}};
//        System.out.println(a[0][0]);
//        System.out.println(a[0][1]);

//        int[][] b = new int[3][3];
//        System.out.println(b[0][0]);
//        System.out.println(b[0][1]);

//        int[] a=new int[10];
//        System.out.println(a);
//        System.out.println(a[0]);

        int[][] c = null;
        System.out.println(c);
        c=new int[3][];
        System.out.println(c);
        System.out.println(c[0]);
        c[0]=new int[3];
        System.out.println(c[0]);
        System.out.println(c[0][0]);
        System.out.println(c[1]);
        c[1]=new int[5];
        System.out.println(c[1][0]);

    }
}
